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winterPartIX.UQ experiment

This is the prototype-experiment UQ. Happily made and made over and made over as many wrote here of their Insultex experiments and I looked how the pros do it.

summerPartIX.UQ is a darted, shaped 5'long, one layerIX UQ; tabs for suspension or attachment to ripstop nylon layer.

I have been using this in spring and summer; IX alone or with nylon layer ( ENO sl ).
My husband has been using the winterPartIX.UQ ( ENO dbl ).

winterPartIX was the first experiment : 40" wide, decided to not cut off the extra 20", but folded 10" on each side. Folded and sewn on edge and left as a flap, expecting it to lay towards the middle and catch air, warm air. Added 16" flaps at top and bottom.
Shaped to shoulders, tapered to feet; attached to ripstop with channels all around. Channels to adjust lengths, widths, shapes until form was determined.

The summerPartIX.UQ combines with winterPartIX.UQ for two plus layers of IX and one or two of ripstop. Pick and choose, attached with shockcord.

When husband in ENO and winterPartIX.UQ attached he felt warm instantly.

This week placed the one layer summerIX.UQ in the pocket of the WBBB; husband giving my WBBB a trial run. The IX stayed in place enough for summer.

I got to try the winterPartIX.UQ. The double IX at the shoulders is effective.
Will see how much so this autumn.

winterPartIX.UQ is for vanCamping. summerPartIX.UQ is for backpacking.
next a winterPartIX.UQ for backpacking.

So if I understand correctly, the summer model is a shaped 20" wide by 60" long? The winter model is 40" wide (20" + 10" side flap + 10" side flap) by 92" long (60" + 16" top flap and "16" end flap = 92")?

So if I understand correctly, the summer model is a shaped 20" wide by 60" long?

I think she is saying that both are 40" wide. The IX comes 60" wide. For the winter model she did not cut off the excess width, but folded it in.

I use the 20" that is cut off to make the InsulTubes Torso Heater 2'x3' sewn-in insert, affixed to the bottom of the innermost layer to avoid Cold Butt Syndrome. I have never heard of Cold Shoulder Syndrome!

I have no idea of the weight. At this point I am more interested in function.
Have no pictures and do not know the weight.
Will figure that out when the experiment is finished.

MacEntyre has a lot of weight info on his site and in his many posts.
Followed his experiments.

I like to shape with darts. Yet, if the curve, such as at the shoulders, is unknown,
making a channel lets you tighten ( figure the shape ) with a cordlock. Then you can make it fit and transfer the info to the final version.

summerPartIX.UQ: IX is approx 5'long x 3'w with grosgrain all around to give some structure. Wide at shoulder, tapered at feet.
Grosgrain tabs in the corners.
5" squareKnotted loops of shockcord tie it to the tabs on the ripstop ( for easy on/off ).
Ripstop which is approx 7' x 4', channels all around with one long shockcord loop with cordlocks on diagonal corners. ( can be used alone or with IX )

These were made for ENOs. Now we are going WBBB.
The summerPartIX.UQ can be adapted for the WBBBs.

winterPartIX.UQ is approx 5'long x 40w, tapered at foot. ( IX as described in above post. )
Ripstop attached to IX only at top and bottom to allow maximum floating of layers.
Channels along the sides with shockcords.

Eventually sewed channel at shoulder end to determine needed shoulder curve. ( original darted, but needed snugger fit. )

Will make a bit lighter version for my backpacking.

Husband is over 6', I am under 5'. What is full length for me is 3/4 for him.

I like to shape with darts. Yet, if the curve, such as at the shoulders, is unknown, making a channel lets you tighten

I find that if you err on the side of deeper and longer darts, it works that much better. I call Molly Mac Gear "heavily darted" ...it's more than you would think is necessary. The idea is that the occupant, to a large extent, has the effect of trying to straighten and flatten the UQ, and in doing so, makes a tight fit with sealed edges. The container is more radically curved than the contents, and they find an equilibrium.

I find that if you err on the side of deeper and longer darts, it works that much better.

I agree.

The idea is that the occupant, to a large extent, has the effect of trying to straighten and flatten the UQ, and in doing so, makes a tight fit with sealed edges. The container is more radically curved than the contents, and they find an equilibrium.